NDLI: Binary black holes, gravitational waves, and numerical relativity (Document No: 20080040789)

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Binary black holes, gravitational waves, and numerical relativity (Document No: 20080040789)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Centrella, Joan
Copyright Year	2007
Description	Massive black hole (MBH) binaries are found at the centers of most galaxies. MBH mergers trace galaxy mergers and are strong sources of gravitational waves. Observing these sources with gravitational wave detectors requires that we know the radiation waveforms they emit. Since these mergers take place in regions of very strong gravitational fields, we need to solve Einstein's equations of general relativity on a computer in order to calculate these waveforms. For more than 30 years, scientists have tried to compute these waveforms using the methods of numerical relativity. The resulting computer codes have been plagued by instabilities. causing them to crash well before the black hole:, in the binary could complete even a single orbit. Recently this situation has changed dramatically, with a series of amazing breakthroughs. This presentation shows how a spacetime is constructed on a computer to build a simulation laboratory for binary black hole mergers. Focus is on the recent advances that that reveal these waveforms, and the potential for discoveries that arises when these sources are observed by LIGO and LISA.
File Size	4962695
Page Count	34
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20080040789
Archival Resource Key	ark:/13960/t6q005v64
Language	English
Publisher Date	2007-03-13
Access Restriction	Open
Subject Keyword	Astronomy Numerical Analysis Gravitational Waves Lisa Observatory Relativity Waveforms Ligo Observatory Gravitational Fields Black Holes Astronomy Space-time Functions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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